metoppv/improver: 1.4.0

What's Changed Shrink acceptance test data - PR10 by @bayliffe in https://github.com/metoppv/improver/pull/1874 Shrink acceptance test data - PR11 by @bayliffe in https://github.com/metoppv/improver/pull/1875 Updated metadata documentation part 2 - principles by @bjwheltor in https://github.com/metoppv/improver/pull/1865 Shrink acceptance test data - PR12 by @bayliffe in https://github.com/metoppv/improver/pull/1876 Shrink acceptance test data - PR13 by @bayliffe in https://github.com/metoppv/improver/pull/1877 Shrink acceptance test data - PR14 by @bayliffe in https://github.com/metoppv/improver/pull/1881 Shrink acceptance test data - PR9 by @bayliffe in https://github.com/metoppv/improver/pull/1872 Shrink acceptance test data - PR15 by @bayliffe in https://github.com/metoppv/improver/pull/1882 Shrink acceptance test data - PR17 by @bayliffe in https://github.com/metoppv/improver/pull/1884 Shrink acceptance test data - PR16 by @bayliffe in https://github.com/metoppv/improver/pull/1883 Update the fixed lapse rate test KGO by @bayliffe in https://github.com/metoppv/improver/pull/1887 Debug scheduled action by @cpelley in https://github.com/metoppv/improver/pull/1888 Updated metadata documentation part 3 - probabilities by @bjwheltor in https://github.com/metoppv/improver/pull/1866 Refactors SpotLapseRateAdjust so that the two pathways are easier to follow. by @MoseleyS in https://github.com/metoppv/improver/pull/1880 DEBUG: Using mamba tool once more by @cpelley in https://github.com/metoppv/improver/pull/1890 CI consistency with scheduled gh actions by @cpelley in https://github.com/metoppv/improver/pull/1891 Add vertical distance limit to positive lapse rate application by @gavinevans in https://github.com/metoppv/improver/pull/1886 Bump actions/stale from 7 to 8 by @dependabot in https://github.com/metoppv/improver/pull/1889 Minor edits following release of pandas 2.0.0 by @gavinevans in https://github.com/metoppv/improver/pull/1899 Add functionality to rebadge realizations as percentiles by @gavinevans in https://github.com/metoppv/improver/pull/1892 Updated metadata documentation part 4 - reference by @bjwheltor in https://github.com/metoppv/improver/pull/1870 Add CLI to perform blending with mismatching vicinities and the option to rename the cube by @MoseleyS in https://github.com/metoppv/improver/pull/1895 Replace super-ensemble with probability blending by @btrotta-bom in https://github.com/metoppv/improver/pull/1901 Full Changelog: https://github.com/metoppv/improver/compare/1.3.6...1.4.